this question is on my mind too. there are museums in UK which may have different arrangements but so far i havent had time to catalogue much of my enormous collection which i feel is a necessary pre-requisite before planning any destination for anything.

My collection includes ancient, old, vintage, Organics, found and experimental items, etc, etc. not yet examples of everything... would we have a better chance leaving treasures to our offspring???

maybe divide lots between specialist museums, such as ancient "Egyptian", or "Roman" the local museums near ancient sites, or donate more Jet to Whitby? Coral to southern Italy? or add at least the plant-based organics to a big collection already held at the Royal Botanical Society, Kew gardens?